Gmail has consistently had a to-do list feature builtin. The problem was that it was not incorporated with your Google Calendar. Until now.
Google is rolling out the capacity to add todo reminders in Google Calendar for Android and iOS, with support for the internet coming shortly.
Awesome. Is that useful?
Thus, integration or alarms with all the Schedule was not possible. Because of this, most users could not profit from the attribute. This resulted in the characteristic sitting without users taking complete benefit of it on Gmail.

“Now there is one means to deal with your day: beginning this week, you can make Reminders in Google Calendar to keep track of your to dos alongside your scheduled occasions.”